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2004: 3,100 advisories published
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TITLE:
yarssr GUI.pm URL Handling Command Injection Vulnerability

SECUNIA ADVISORY ID:
SA27454

VERIFY ADVISORY:
http://secunia.com/advisories/27454/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
yarssr 0.x
http://secunia.com/product/16384/

DESCRIPTION:
Duncan Gilmore has discovered a vulnerability in yarssr, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to the GUI.pm module not properly
sanitising URLs before using them in an "exec()" statement to launch
the browser. This can be exploited to inject and execute arbitrary
commands with the privileges of the user running yarssr by tricking
him into clicking on a malicious feed link.

Successful exploitation requires that "Gnome default" URL handling is
disabled.

The vulnerability is confirmed in yassr 0.2.2 for Ubuntu 7.10.

SOLUTION:
Do not subscribe to untrusted feeds.

PROVIDED AND/OR DISCOVERED BY:
Duncan Gilmore

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=448721

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